Which one requires greater force: (i) to generate motion in a body of mass ‘m’ from 0 to ‘v’ in time ‘t’; or (ii) to generate motion in a body of mass ‘2m’ from 0 to ‘2v’ in time ‘4t’.Will mark as brainliest if answered correctly...
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Which one requires greater force: (i) to generate motion in a body of mass ‘m’ from 0 to ‘v’ in time ‘t’; or (ii) to generate motion in a body of mass ‘2m’ from 0 to ‘2v’ in time ‘4t’.Will mark as brainliest if answered correctly...
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dont know the answer, sorry
Answer:
Centre of mass:
It is the point where whole mass of the body is concentrated. If an external force is applied on COM , it torque will be zero.
Centre of gravity:
It is the point where the torque of gravitational force is zero.
COM and CAG mag or mag not coincides
couple only produces rotation, no translation
Mechanical advantage = output/input
Input force
output force
If it is grater than 1
Output > 1 input
So, less effort is required to lift large low
Explanation:
hope this helps